Groovy expression input for fields

This document lists the expected result of a Groovy expression that should be provided to set Jira Standard and Custom fields. The easiest is to use the "Expected Value" tab of the Groovy editor help system. It lists the possible expected values for the selected Field and Value Type. This is applicable in contexts where you set a field value or comment an issue or write a conditional Groovy script. Select the Field and Value Type as Set field value to Groovy expression. Click on Expected Value. The help editor displays the expected values for the selected field.

You might also want to look at Standard fields, Predefined custom fields, and User-created custom fields to know how to access the fields of an issue object.

On this page:

Standard Jira fields
Field Name
Expected input type
Expected input value
Example
Affects Version/s
String
String[]
Version
Collection<Version>
A Groovy expression that returns a:
String representing the name or id of a version.
String with comma separated values that represent the names or ids (id takes precedence over the name) of the versions
An array of strings that represent the names or ids (id takes precedence over the name) of the versions
Single version object
Collection of version objects
"1.0"
"1.0,2.0"
["1.0","2.0"]
On creating a Bug set its Affects Version/s to the most recently released version
Set the Affects Version/s of the issue to Affects Version/s of all its linked issues
Assignee
String
ApplicationUser
A Groovy expression that returns a:
String representing the username of a user
ApplicationUser object
"carter"
Assign the issue to the Project lead, if the issue is unassigned on creation.
Components
String
String[]
ProjectComponent
Collection<ProjectComponent>
A Groovy expression that returns a:
String representing the name or id of the component
String with comma separated values that represent the names or ids (id takes precedence over the name) of the components
An array of strings that represent the names or ids (id takes precedence over the name) of the components
Single component object
Collection of component objects
On creating an issue, pick the component of the issue from a cascading field that carries the Main and Sub-components
"C1,C2"
["C1","C2"]

Set the Component/s of the issue to components whose lead is the current user
Description String
A Groovy expression that returns a:
String representing a single line text.
String representing a multi-line text
"Issue associated to TEST-121"
"Issues:\nFirst issue\nSecond issue"
On the creation of a sub-task add its summary to the description of its parent.
Due date
String
Timestamp
A Groovy expression that returns a:
String representing a timestamp in the format specified in Jira system settings.
Timestamp object
Set the due date to today's date
Set the due date to issue created plus five days.
Environment String
A Groovy expression that returns a:
String representing a single line text
String representing a multi-line text
"QA"
"1. QA\n2. Production"
Fix Version/s
String
String[]
Version
Collection<Version>
A Groovy expression that returns a:
String representing the name or id of the version
String with comma separated values that represent the names or ids (id takes precedence over the name) of the versions
An array of strings that represent the names or ids (id takes precedence over the name) of the versions
Single version object
Collection of version objects
On creating a Bug with High priority fix it in the upcoming release.
"1.0,2.0"
["1.0","2.0"]
Assign to an unreleased version whose release date is nearest to the issue's due date
Issue type
String
Long
IssueType

Use with caution!
Changing the issue type should only be done if the current and new issue types share the same workflow, or if the issue's Status exists in both the current and new workflow. Otherwise, the operaton will fail.
Also, when changing the issue type of the current issue, make sure to move the post-function below the "Set issue status to the linked status of the destination workflow step" built-in post-function.
A Groovy expression that returns a:
String representing a valid issue type name
Number representing a valid issue type ID
IssueType object.
"Bug"
10020
issue.issuetype
Labels
String
Set<Label>
A Groovy expression that returns a:
String representing a value
String with space separated values
An array of strings that represent values
Set of labels
"New"
"KB How-to-do"
["KB","How-to-do"]
issue.get("Custom labels field")
Original Estimate
Long
String
A Groovy expression that returns a
Number in Long format representing the estimate in seconds
Duration string
"36000"
"3w 4d 5h"
Set the Original estimate of the issue to the difference of its creation date and Due date
Priority
String
Priority
A Groovy expression that returns a:
String representing the name or id of the priority
Priority object
"Blocker"
Set the priority of the issue to Highest if the issue belongs to the "Customer Portal" component
On the creation of a Story, change its priority to that of the Epic if the Epic's priority is lower than the current priority of the Story
Remaining Estimate
Long
String
A Groovy expression that returns a
Number in Long format representing the estimate in seconds
Duration string
22400L
"22400"
issue.get("timespent")
"4w 2d 6h 40m"
Reporter
String
ApplicationUser
A Groovy expression that returns a:
String representing the username of a user
ApplicationUser object
"carter"
Assign a reopened issue to the last person who commented it.
Resolution
String
Resolution
A Groovy expression that returns a:
String representing the name or id of the resolution
Resolution object.
"Done"
Set with the resolution the Epic resolution.

issue.getEpic?.get("resolution")

Security level
String
Long
IssueSecurityLevel
A Groovy expression that returns a:
String representing the name or id of the security level
Number in Long format representing the id of the security level
Security level
"QA" or "10000"
10000L
Assign to the first security level of the project that can be set for an issue created in this project by the current user
Summary String
A Groovy expression that returns a String representing a single line text
"Test of the web interface"
Time spent
Long
String
A Groovy expression that returns a
Number in Long format representing the time spent in seconds
Duration string
22400L
"22400"
"4w 2d 6h 40m
Votes
String
String[]
ApplicationUser
Collection<ApplicationUser>
A Groovy expression that returns a:
String representing the username of a user
String with comma separated values that represent the usernames of the users.
An array of strings that represent the usernames of the users
Single ApplicationUser object
Collection of ApplicationUser objects
"charlie"
"charlie,carter"
["charlie","carter"]
Watchers
String
String[]
ApplicationUser
Collection<ApplicationUser>
A Groovy expression that returns a:
String representing the username of a user
String with comma separated values that represent the usernames of the users.
An array of strings that represent the usernames of the users
Single ApplicationUser object
Collection of ApplicationUser objects
"charlie"
"charlie,carter"
["charlie","carter"]
On the creation of a Story add the reporter of its Epic to the Watchers
Pre-defined custom fields
Capture for JIRA fields
Field Name Expected input type Expected input value Examples
All Capture for JIRA fields String
A Groovy expression that returns a:
String representing a single line text.
String representing a multi-line text
issue.get("environment")
Raised during String A Groovy expression that returns a String representing the id of a session. "10001"
Jira Software fields
Field Name Expected input type Expected input value Examples
Epic Color String A Groovy expression that returns a String representing the color of the Epic.
"ghx-label-6"
Epic Link String A Groovy expression returning a String representing the key of an Epic.
"TEST-34"
Epic has a Story and the task has a sub-task. When the sub-task is reopened we create a bug in another project linking it to the sub-task. On creation of the Bug, set the Epic link field value to the same field of the Task
Epic Name String A Groovy expression that returns a String representing the name of the Epic.
"Creation of a new issue"
issue.get("summary")
Epic Status String A Groovy expression that returns a String representing the value of the Epic status.

Sprint
Long
Sprint
Sprint[]
A Groovy expression that returns a:
String representing the id of a Sprint
String with comma separated values that represent the ids of the Sprints
An array of strings that represent the ids of the Sprints
Single Sprint object
Collection of Sprint objects
"1"
"1,2"
["1","2"]
issue.getEpic()?.get("Sprint")
Status
String
Long
Status

Use with caution!
Changing the Status of an issue is normally done only through an issue transition. Changing the Status field value directly will not validate potentially required fields (such as the Resolution field), and will leave no trace in the issue history. This should be used only in specific cases.
Also, when changing the Status of the current issue, make sure to move the post-function below the "Set issue status to the linked status of the destination workflow step" built-in post-function.
Finally, the Status field cannot be set during a Create transition.
A Groovy expression that returns a:
String representing a valid status name
Number representing a valid status ID
Status object.
"Open"
10000
issue.get("status").name
Story points
String
Double
A Groovy expression that returns a:
String containing a number
Number in Double format.
"10"
5d
"25.6"
Jira Service Desk fields
Field Name Expected input type Expected input value Examples
Approvers
String
String[]
ApplicationUser
Collection<ApplicationUser>
A Groovy expression that returns a:
String representing the username of a user
String with comma separated values that represent the usernames of the users
An array of strings that represent the usernames of the users
Single ApplicationUser object
Collection of ApplicationUser objects
"carter"
"djohn,carter"
["djohn","carter"]
[issue.get("assignee")]
issue.get("Watchers")
Customer Request Type String
A Groovy expression that returns a:
String representing the Customer Request Type name
String representing the Customer Request Type internal ID
"IT help"
"sd/desktoplaptopsupport"
Organizations
String
Set<String>
A Groovy expression that returns a:
String representing the name of an Organization
String representing the id of an Organization
String with comma-separated values that represent the names of the Organizations
String with comma-separated values that represent the ids of the Organizations
An array of strings that represent the names of the Organizations
An array of strings that represent the ids of the Organizations
"Acme, Inc."
"1"
"Acme,Apple"
"1,33"
["Acme, Inc.", "Apple"]
["1","33"]
Request Participants
String
String[]
ApplicationUser
Collection<ApplicationUser>
A Groovy expression that returns a:
String representing the username of a user
String with comma separated values that represent the usernames of the users
An array of strings that represent the usernames of the users
Single ApplicationUser object
Collection of ApplicationUser objects
"carter"
"jon,charlie"
["carter","djohn"]
issue.get("assignee")
Portfolio for Jira fields
Field Name
Expected input type
Expected input value
Examples
Parent Link
String
A Groovy expression returning a String representing the key of an Initiative.
Note: You can use this field to create a link (Jira Portfolio Parent Link) from Epic to Initiative
"KP-9"
Tempo fields
Field Name Expected input type Expected input value Examples
Account
Tempo account object
String
Long
A Groovy expression that returns either:
a Tempo account object
a String representing either the Account Key or the account Name
a Long representing the Account ID
"ACCOUNT1"
"Account 1"
23
Team
String A Groovy expression that returns a String representing the id of the Tempo team. "1"
User-created custom fields
The value expected by custom fields depends on the Custom Field Type:
Select list type
Custom field type
Expected input type
Expected input value
Examples
Checkboxes/Select List (multiple choices)
String
String[]
Option
Collection<Option>
A Groovy expression that returns a:
String representing the option value or id (value takes precedence over the id)
String with comma separated values that represent the values or ids (value takes precedence over the id) of options.
An array of strings that represent the values or ids (value takes precedence over the id) of the options
Option object
Collection of option objects
"10000"
"Skype Installation,Eclipse Installation"
["Skype Installation","Eclipse Installation"]
issue.get("Radio Buttons")
Auto select the installation tasks in a Task checklist after the Installations are done.
Radio buttons/Select List (single choice)
String
Option
A Groovy expression that returns a:
String representing the option value or id (value takes precedence over the id)
Option object
"Hipchat Installation"
issue.get("Checkboxes")?.first()?.getValue()
Select List (cascading)
String
Map<String, Option>
A Groovy expression that returns a:
String representing the value or id of the parent
String representing the value or id of the parent and value or id of the child in the format <parent> - <child>
Map with two entries
null key: value or id or Option for the parent value
"1" key: value or id or Option of the child
"2"
"1 - 1.1"
[null:"O1", "1":issue.get("RB")]
Multi-level cascading select list
String
String[]
Option
Collection<Option>
A Groovy expression that returns a:
A comma-separated list of option values, from parent to child:
A comma-separated list of option IDs, from parent to child
An array of option values, from parent to child
An array of option IDs, from parent to child:
An array of Option objects, from parent to child.
"Parent 1,Child A,Child b"
"10010,10011,10100"
["Parent 1","Child A","Child b"]
[10010,10011,10100]
issue.get("MLCS field")
Group picker
Custom field type
Expected input type
Expected input value
Examples
Group Picker (single group)
String
Group
A Groovy expression that returns a:
String representing the group name
Group object

"jira-administrators"
Update a custom group picker field to the first group the assignee belongs to.
Group Picker (multiple groups)
String
String[]
Group
Collection<Group>
A Groovy expression that returns a:
String representing the group name
String with comma separated values that represent the name of the groups
An array of strings that represent the names of the groups
Group object
Collection of group objects
"jira-administrators"
"jira-administrators,jira-software-users"
["jira-administrators","jira-software-users"]
issue.get("Single group")
Update a custom multi-group picker field to all the groups the current user belongs to
User picker
Custom field type
Expected input type
Expected input value
Examples
User Picker (multiple users)
String
String[]
ApplicationUser
Collection<ApplicationUser>
A Groovy expression that returns a:
String representing the username
String with comma separated values that represent the usernames of the users
An array of strings that represent the usernames of the users
Single ApplicationUser object
Collection of ApplicationUser objects
"carter"
"carter,djohn"
["carter",djohn"]
issue.get("assignee")
On creating an issue, Copy the component leads of the selected components to a Multi-user picker field
User Picker (single user)
String
ApplicationUser
A Groovy expression that returns a:
String representing the username
ApplicationUser object
"carter"
Save the author of the "Approve" transition in a custom single-user picker field
Version picker
Custom field type
Expected input type
Expected input value
Examples
Version Picker (single version)
String
Version
A Groovy expression that returns a:
String representing the id of a version.
Single version object
"10000"
This code snippet returns the first Fix Version/s

issue.get("fixVersions")?.first()

Version Picker (multiple versions)
String
String[]
Version
Collection<Version>
A Groovy expression that returns a:
String representing the id of a version.
String with comma separated values that represent the ids of the versions
An array of strings that represent the ids of the versions
Single version object
Collection of version objects
"10000"
"10000,10010"
["10000","10010" ]
This code snippet returns the last Affects Version/s

issue.get("versions")?.last()

This code snippet returns the Fix Version/s

issue.get("fixVersions")

Text
Custom field type
Expected input type
Expected input value
Examples
Text Field (single line) String A Groovy expression that returns a String representing a single-line text.
"Test of a credit card issue screen"
issue.get("summary")
Text Field (multi line) String A Groovy expression that returns a String representing a multi-line text.
"Add the post-function\nPlace it at the end"
issue.get("description")
Date/Time picker
Custom field type
Expected input type
Expected input value
Examples
Date Picker
String
Timestamp
A Groovy expression that returns a:
String representing a timestamp in the format specified in Jira system settings.
Timestamp object
"11/Apr/18"
Set a date picker field of a Bug to the Fix Version/s release date
To manipulate the date see here
Date Time Picker Timestamp
A Groovy expression that returns a:
String representing a timestamp in the format specified in Jira system settings.
Timestamp object
"11/Apr/18 2:00 PM"
issue.get("created") + 10
To manipulate the date see here
Watcher Field type
Field Name
Expected input type
Expected input value
Examples
Watcher field type
String
String[]
ApplicationUser
Collection<ApplicationUser>
A Groovy expression that returns a:
String representing the username of a user
String with comma separated values that represent the usernames of the users
An array of strings that represent the usernames of the users
Single ApplicationUser object
Collection of ApplicationUser objects
"carter"
"djohn,carter"
["djohn","carter"]
[issue.get("assignee")]
issue.get("Watchers")
Others
Custom field type
Expected input type
Expected input value
Examples
Project Picker (single project)
String
Project
A Groovy expression that returns a:
String representing the project id or name or key
Project object
"10000"
"TEST"
Labels
String
Set<Label>
A Groovy expression that returns a:
String representing a value
String with space separated values
An array of strings that represent values
Set of labels
"New"
"KB How-to-do"
["KB","How-to-do"]
issue.get("Labels")
URL Field String A Groovy expression that returns a String representing a URL.
"https://innovalog.com"
Number Field
String
Double
A Groovy expression that returns a:
String containing a number
Number in Double format.
"33"
"100.5"
20d

Field Name	Expected input type	Expected input value	Example
Affects Version/s	`String` `String[]` `Version` `Collection<Version>`	A Groovy expression that returns a: String representing the name or id of a version. String with comma separated values that represent the names or ids (id takes precedence over the name) of the versions An array of strings that represent the names or ids (id takes precedence over the name) of the versions Single version object Collection of version objects	`"1.0"` `"1.0,2.0"` `["1.0","2.0"]` On creating a Bug set its Affects Version/s to the most recently released version Set the Affects Version/s of the issue to Affects Version/s of all its linked issues
Assignee	`String` `ApplicationUser`	A Groovy expression that returns a: String representing the username of a user ApplicationUser object	`"carter"` Assign the issue to the Project lead, if the issue is unassigned on creation.
Components	`String` `String[]` `ProjectComponent` `Collection<ProjectComponent>`	A Groovy expression that returns a: String representing the name or id of the component String with comma separated values that represent the names or ids (id takes precedence over the name) of the components An array of strings that represent the names or ids (id takes precedence over the name) of the components Single component object Collection of component objects	On creating an issue, pick the component of the issue from a cascading field that carries the Main and Sub-components `"C1,C2"` `["C1","C2"]` Set the Component/s of the issue to components whose lead is the current user
Description	`String`	A Groovy expression that returns a: String representing a single line text. String representing a multi-line text	`"Issue associated to TEST-121"` `"Issues:\nFirst issue\nSecond issue"` On the creation of a sub-task add its summary to the description of its parent.
Due date	`String` `Timestamp`	A Groovy expression that returns a: String representing a timestamp in the format specified in Jira system settings. Timestamp object	Set the due date to today's date Set the due date to issue created plus five days.
Environment	`String`	A Groovy expression that returns a: String representing a single line text String representing a multi-line text	`"QA"` `"1. QA\n2. Production"`
Fix Version/s	`String` `String[]` `Version` `Collection<Version>`	A Groovy expression that returns a: String representing the name or id of the version String with comma separated values that represent the names or ids (id takes precedence over the name) of the versions An array of strings that represent the names or ids (id takes precedence over the name) of the versions Single version object Collection of version objects	On creating a Bug with High priority fix it in the upcoming release. `"1.0,2.0"` `["1.0","2.0"]` Assign to an unreleased version whose release date is nearest to the issue's due date
Issue type	`String` `Long` `IssueType`	Use with caution! Changing the issue type should only be done if the current and new issue types share the same workflow, or if the issue's Status exists in both the current and new workflow. Otherwise, the operaton will fail. Also, when changing the issue type of the current issue, make sure to move the post-function below the "Set issue status to the linked status of the destination workflow step" built-in post-function. A Groovy expression that returns a: String representing a valid issue type name Number representing a valid issue type ID IssueType object.	`"Bug"` `10020` `issue.issuetype`
Labels	`String` `Set<Label>`	A Groovy expression that returns a: String representing a value String with space separated values An array of strings that represent values Set of labels	`"New"` `"KB How-to-do"` `["KB","How-to-do"]` `issue.get("Custom labels field")`
Original Estimate	`Long` `String`	A Groovy expression that returns a Number in Long format representing the estimate in seconds Duration string	`"36000"` `"3w 4d 5h"` Set the Original estimate of the issue to the difference of its creation date and Due date
Priority	`String` `Priority`	A Groovy expression that returns a: String representing the name or id of the priority Priority object	"Blocker" Set the priority of the issue to Highest if the issue belongs to the "Customer Portal" component On the creation of a Story, change its priority to that of the Epic if the Epic's priority is lower than the current priority of the Story
Remaining Estimate	`Long` `String`	A Groovy expression that returns a Number in Long format representing the estimate in seconds Duration string	`22400L` `"22400"` `issue.get("timespent")` `"4w 2d 6h 40m"`
Reporter	`String` `ApplicationUser`	A Groovy expression that returns a: String representing the username of a user ApplicationUser object	`"carter"` Assign a reopened issue to the last person who commented it.
Resolution	`String` `Resolution`	A Groovy expression that returns a: String representing the name or id of the resolution Resolution object.	`"Done"` Set with the resolution the Epic resolution. issue.getEpic?.get("resolution")
Security level	`String` `Long` `IssueSecurityLevel`	A Groovy expression that returns a: String representing the name or id of the security level Number in Long format representing the id of the security level Security level	`"QA"` or `"10000"` `10000L` Assign to the first security level of the project that can be set for an issue created in this project by the current user
Summary	`String`	A Groovy expression that returns a String representing a single line text	`"Test of the web interface"`
Time spent	`Long` `String`	A Groovy expression that returns a Number in Long format representing the time spent in seconds Duration string	`22400L` `"22400"` `"4w 2d 6h 40m`
Votes	`String` `String[]` `ApplicationUser` `Collection<ApplicationUser>`	A Groovy expression that returns a: String representing the username of a user String with comma separated values that represent the usernames of the users. An array of strings that represent the usernames of the users Single ApplicationUser object Collection of ApplicationUser objects	`"charlie"` `"charlie,carter"` `["charlie","carter"]`
Watchers	`String` `String[]` `ApplicationUser` `Collection<ApplicationUser>`	A Groovy expression that returns a: String representing the username of a user String with comma separated values that represent the usernames of the users. An array of strings that represent the usernames of the users Single ApplicationUser object Collection of ApplicationUser objects	`"charlie"` `"charlie,carter"` `["charlie","carter"]` On the creation of a Story add the reporter of its Epic to the Watchers

Field Name	Expected input type	Expected input value	Examples
Epic Color	`String`	A Groovy expression that returns a String representing the color of the Epic.	`"ghx-label-6"`
Epic Link	`String`	A Groovy expression returning a String representing the key of an Epic.	"TEST-34" Epic has a Story and the task has a sub-task. When the sub-task is reopened we create a bug in another project linking it to the sub-task. On creation of the Bug, set the Epic link field value to the same field of the Task
Epic Name	`String`	A Groovy expression that returns a String representing the name of the Epic.	`"Creation of a new issue"` `issue.get("summary")`
Epic Status	`String`	A Groovy expression that returns a String representing the value of the Epic status.
Sprint	`Long` `Sprint` `Sprint[]`	A Groovy expression that returns a: String representing the id of a Sprint String with comma separated values that represent the ids of the Sprints An array of strings that represent the ids of the Sprints Single Sprint object Collection of Sprint objects	`"1"` `"1,2"` `["1","2"]` `issue.getEpic()?.get("Sprint")`
Status	`String` `Long` `Status`	Use with caution! Changing the Status of an issue is normally done only through an issue transition. Changing the Status field value directly will not validate potentially required fields (such as the Resolution field), and will leave no trace in the issue history. This should be used only in specific cases. Also, when changing the Status of the current issue, make sure to move the post-function below the "Set issue status to the linked status of the destination workflow step" built-in post-function. Finally, the Status field cannot be set during a Create transition. A Groovy expression that returns a: String representing a valid status name Number representing a valid status ID Status object.	`"Open"` `10000` `issue.get("status").name`
Story points	`String` `Double`	A Groovy expression that returns a: String containing a number Number in Double format.	`"10"` `5d` `"25.6"`

Field Name	Expected input type	Expected input value	Examples
Approvers	`String` `String[]` `ApplicationUser` `Collection<ApplicationUser>`	A Groovy expression that returns a: String representing the username of a user String with comma separated values that represent the usernames of the users An array of strings that represent the usernames of the users Single ApplicationUser object Collection of ApplicationUser objects	`"carter"` `"djohn,carter"` `["djohn","carter"]` `[issue.get("assignee")]` `issue.get("Watchers")`
Customer Request Type	`String`	A Groovy expression that returns a: String representing the Customer Request Type name String representing the Customer Request Type internal ID	`"IT help"` `"sd/desktoplaptopsupport"`
Organizations	`String` `Set<String>`	A Groovy expression that returns a: String representing the name of an Organization String representing the id of an Organization String with comma-separated values that represent the names of the Organizations String with comma-separated values that represent the ids of the Organizations An array of strings that represent the names of the Organizations An array of strings that represent the ids of the Organizations	`"Acme, Inc."` `"1"` `"Acme,Apple"` `"1,33"` ["Acme, Inc.", "Apple"] `["1","33"]`
Request Participants	`String` `String[]` `ApplicationUser` `Collection<ApplicationUser>`	A Groovy expression that returns a: String representing the username of a user String with comma separated values that represent the usernames of the users An array of strings that represent the usernames of the users Single ApplicationUser object Collection of ApplicationUser objects	`"carter"` `"jon,charlie"` `["carter","djohn"]` `issue.get("assignee")`

Custom field type	Expected input type	Expected input value	Examples
Checkboxes/Select List (multiple choices)	`String` `String[]` `Option` `Collection<Option>`	A Groovy expression that returns a: String representing the option value or id (value takes precedence over the id) String with comma separated values that represent the values or ids (value takes precedence over the id) of options. An array of strings that represent the values or ids (value takes precedence over the id) of the options Option object Collection of option objects	`"10000"` `"Skype Installation,Eclipse Installation"` `["Skype Installation","Eclipse Installation"]` `issue.get("Radio Buttons")` Auto select the installation tasks in a Task checklist after the Installations are done.
Radio buttons/Select List (single choice)	`String` `Option`	A Groovy expression that returns a: String representing the option value or id (value takes precedence over the id) Option object	`"Hipchat Installation"` `issue.get("Checkboxes")?.first()?.getValue()`
Select List (cascading)	`String` `Map<String, Option>`	A Groovy expression that returns a: String representing the value or id of the parent String representing the value or id of the parent and value or id of the child in the format `<parent> - <child>` Map with two entries `null` key: value or id or Option for the parent value `"1"` key: value or id or Option of the child	`"2"` `"1 - 1.1"` `[null:"O1", "1":issue.get("RB")]`
Multi-level cascading select list	`String` `String[]` `Option` `Collection<Option>`	A Groovy expression that returns a: A comma-separated list of option values, from parent to child: A comma-separated list of option IDs, from parent to child An array of option values, from parent to child An array of option IDs, from parent to child: An array of Option objects, from parent to child.	`"Parent 1,Child A,Child b"` `"10010,10011,10100"` `["Parent 1","Child A","Child b"]` `[10010,10011,10100]` `issue.get("MLCS field")`

Custom field type	Expected input type	Expected input value	Examples
Text Field (single line)	`String`	A Groovy expression that returns a String representing a single-line text.	`"Test of a credit card issue screen"` `issue.get("summary")`
Text Field (multi line)	`String`	A Groovy expression that returns a String representing a multi-line text.	`"Add the post-function\nPlace it at the end"` `issue.get("description")`

Custom field type	Expected input type	Expected input value	Examples
Project Picker (single project)	`String` `Project`	A Groovy expression that returns a: String representing the project id or name or key Project object	`"10000"` `"TEST"`
Labels	`String` `Set<Label>`	A Groovy expression that returns a: String representing a value String with space separated values An array of strings that represent values Set of labels	`"New"` `"KB How-to-do"` `["KB","How-to-do"]` `issue.get("Labels")`
URL Field	`String`	A Groovy expression that returns a String representing a URL.	"https://innovalog.com"
Number Field	`String` `Double`	A Groovy expression that returns a: String containing a number Number in Double format.	`"33"` `"100.5"` 20d